Abstract
Searches for anomalous top quark-antiquark production are presented, based on collisions at . The data, corresponding to an integrated luminosity of , were collected with the CMS detector at the LHC. The observed invariant mass spectrum is found to be compatible with the standard model prediction. Limits on the production cross section times branching fraction probe, for the first time, a region of parameter space for certain models of new physics not yet constrained by precision measurements.
- Received 8 September 2013
DOI:https://doi.org/10.1103/PhysRevLett.111.211804
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© 2013 CERN, for the CMS Collaboration